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Low 3.7
Action Mailbox: Possible signature replay in Action Mailbox Mailgun ingress
Action Mailbox routes incoming emails to controller-like mailboxes for processing in Rails. Prior to 8.1.4.1 and 8.0.5.2, the Action Mailbox Mailgun ingress authenticates a request with an HMAC of the timestamp and token parameters concatenated without a sepa…